/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tomcat.util.buf;
import java.nio.charset.StandardCharsets;
import org.junit.Assert;
import org.junit.Test;
/**
* Test cases for {@link HexUtils}.
*/
public class TestHexUtils {
private static final String TEST01_STRING = "Hello World";
private static final byte[] TEST01_BYTES = TEST01_STRING.getBytes(StandardCharsets.UTF_8);
private static final String TEST02_STRING = "foo";
private static final byte[] TEST02_BYTES = TEST02_STRING.getBytes(StandardCharsets.UTF_8);
@Test
public void testGetDec() {
Assert.assertEquals(0, HexUtils.getDec('0'));
Assert.assertEquals(9, HexUtils.getDec('9'));
Assert.assertEquals(10, HexUtils.getDec('a'));
Assert.assertEquals(15, HexUtils.getDec('f'));
Assert.assertEquals(10, HexUtils.getDec('A'));
Assert.assertEquals(15, HexUtils.getDec('F'));
Assert.assertEquals(-1, HexUtils.getDec(0));
Assert.assertEquals(-1, HexUtils.getDec('Z'));
Assert.assertEquals(-1, HexUtils.getDec(255));
Assert.assertEquals(-1, HexUtils.getDec(-60));
}
@Test
public void testRoundTrip01() {
Assert.assertArrayEquals(TEST01_STRING, TEST01_BYTES,
HexUtils.fromHexString(HexUtils.toHexString(TEST01_BYTES)));
}
@Test
public void testRoundTrip02() {
Assert.assertArrayEquals(TEST02_STRING, TEST02_BYTES,
HexUtils.fromHexString(HexUtils.toHexString(TEST02_BYTES)));
}
@Test(expected=IllegalArgumentException.class)
public void testFromHex01() {
HexUtils.fromHexString("Not a hex string");
}
@Test(expected=IllegalArgumentException.class)
public void testFromHex02() {
// Odd number of hex characters
HexUtils.fromHexString("aaa");
}
@Test
public void testToHex01() {
Assert.assertEquals("fedc", HexUtils.toHexString((char) 0xfedc));
}
}